diff --git a/src/main/java/com/interplug/qcast/biz/pwrGnrSimulation/PwrGnrSimService.java b/src/main/java/com/interplug/qcast/biz/pwrGnrSimulation/PwrGnrSimService.java
index 290b2073..72f73060 100644
--- a/src/main/java/com/interplug/qcast/biz/pwrGnrSimulation/PwrGnrSimService.java
+++ b/src/main/java/com/interplug/qcast/biz/pwrGnrSimulation/PwrGnrSimService.java
@@ -123,44 +123,46 @@ public class PwrGnrSimService {
       return exceptionRes;
     }
 
-    // 지붕재의 모든 모듈 Item 조회
+    // 지붕재의 모든 Group 모듈 Item 조회
     pwrGnrSimRequest.setItemGroup("MODULE_");
-    List<PwrGnrSimRoofResponse> roofModuleList =
+    List<PwrGnrSimRoofResponse> roofGroupModuleList =
         pwrGnrSimMapper.selectRoofItemList(pwrGnrSimRequest);
 
-    // 전체 모듈에서 모듈 그룹형태로 변경
+    // 전체 모듈에서 SORT 변경 (총용량 DESC)
     List<PwrGnrSimRoofResponse> moduleGroupList =
-        roofModuleList.stream()
-            .collect(
-                Collectors.groupingBy(
-                    PwrGnrSimRoofResponse::getItemId, // 첫 번째 그룹화 기준
-                    Collectors.collectingAndThen(
-                        Collectors.toList(),
-                        list -> {
-                          // 그룹화된 첫 번째 요소를 기반으로 새 객체 생성
-                          ObjectMapper mapper = new ObjectMapper();
-                          PwrGnrSimRoofResponse setDto =
-                              mapper.convertValue(list.get(0), PwrGnrSimRoofResponse.class);
-
-                          // specification 합산
-                          double totSpecification =
-                              list.stream()
-                                  .mapToDouble(response -> response.getTotSpecification())
-                                  .sum();
-
-                          totSpecification = totSpecification / 1000;
-
-                          // 합산 결과 설정
-                          setDto.setTotSpecification(totSpecification);
-
-                          return setDto;
-                        })))
-            .values()
-            .stream()
+        roofGroupModuleList.stream()
             .sorted(
                 Comparator.comparingDouble(PwrGnrSimRoofResponse::getTotSpecification)
                     .reversed()) // 내림차순 정렬
             .collect(Collectors.toList());
+    //            .collect(
+    //                Collectors.groupingBy(
+    //                    PwrGnrSimRoofResponse::getItemId, // 첫 번째 그룹화 기준
+    //                    Collectors.collectingAndThen(
+    //                        Collectors.toList(),
+    //                        list -> {
+    //                          // 그룹화된 첫 번째 요소를 기반으로 새 객체 생성
+    //                          ObjectMapper mapper = new ObjectMapper();
+    //                          PwrGnrSimRoofResponse setDto =
+    //                              mapper.convertValue(list.get(0),
+    // PwrGnrSimRoofResponse.class);
+    //
+    //                          // specification 합산
+    //                          double totSpecification =
+    //                              list.stream()
+    //                                  .mapToDouble(response ->
+    // response.getTotSpecification())
+    //                                  .sum();
+    //
+    //                          totSpecification = totSpecification / 1000;
+    //
+    //                          // 합산 결과 설정
+    //                          setDto.setTotSpecification(totSpecification);
+    //
+    //                          return setDto;
+    //                        })))
+    //            .values()
+    //            .stream()
 
     // 모듈 아이템이 없음.
     if (moduleGroupList.isEmpty()) {
@@ -168,12 +170,7 @@ public class PwrGnrSimService {
       return exceptionRes;
     }
 
-    // 지붕재의 모든 PCS Item 조회
-    //    pwrGnrSimRequest.setItemGroup("PC_");
-    //    List<PwrGnrSimRoofResponse> roofPcsList =
-    //            pwrGnrSimMapper.selectRoofItemList(pwrGnrSimRequest);
-
-    // GROUP PCS Group Item 조회
+    // 모든GROUP PCS Group Item 조회
     List<PwrGnrSimRoofResponse> pcsGroupList =
         pwrGnrSimMapper.selectRoofPcsGroupList(pwrGnrSimRequest);
 
@@ -261,7 +258,7 @@ public class PwrGnrSimService {
 
       // 지붕별 모듈정보 셋팅
       int j = 0;
-      for (PwrGnrSimRoofResponse m : roofModuleList) {
+      for (PwrGnrSimRoofResponse m : moduleGroupList) {
         if (data.getRoofSurfaceId().equals(m.getRoofSurfaceId())) {
           dSpecification += m.getTotSpecification();
           if (j == 0) {
@@ -271,7 +268,6 @@ public class PwrGnrSimService {
           } else {
             dModuleInput3[i] = Integer.parseInt(m.getAmount());
           }
-
           j++;
         }
       }
@@ -306,7 +302,7 @@ public class PwrGnrSimService {
     pwrGnrSimRes.setAreaName(planInfo.getAreaName());
     pwrGnrSimRes.setSnowfall(planInfo.getSnowfall());
     pwrGnrSimRes.setStandardWindSpeedId(planInfo.getStandardWindSpeedId());
-    pwrGnrSimRes.setRoofModuleList(roofModuleList);
+    pwrGnrSimRes.setRoofModuleList(roofGroupModuleList);
     pwrGnrSimRes.setPcsList(pcsGroupList);
 
     return pwrGnrSimRes;
diff --git a/src/main/resources/mappers/pwrGnrSimulation/pwrGnrSimMapper.xml b/src/main/resources/mappers/pwrGnrSimulation/pwrGnrSimMapper.xml
index c49984e5..d2a7554d 100644
--- a/src/main/resources/mappers/pwrGnrSimulation/pwrGnrSimMapper.xml
+++ b/src/main/resources/mappers/pwrGnrSimulation/pwrGnrSimMapper.xml
@@ -103,6 +103,6 @@
             AND C.ITEM_GROUP = #{itemGroup}
             GROUP BY A.ROOF_SURFACE_ID, A.ROOF_SURFACE, A.CLASS_TYPE, A.AZIMUTH, A.ANGLE, A.SLOPE, B.ITEM_ID, B.ITEM_NO
         ) T
-        ORDER BY T.SPECIFICATION DESC
+        ORDER BY T.ROOF_SURFACE_ID ASC, T.ITEM_ID ASC
     </select>
 </mapper>
\ No newline at end of file